泡桐丛枝病是常见的严重泡桐病害。其病症主要表现为:腋芽和不定芽大量萌发丛生,节间变短,叶片黄化变小,丛生小枝小叶,形如扫帚或鸟窝,病株生长缓慢。轻者几年内死亡,重者当年枯死。在山东、河南、山西三省泡桐产区尤其严重,丛枝病到处可见。在上海种植的泡桐树中,也有丛枝病发生。我们在泡桐丛枝病病株叶脉筛管细胞中发现类菌原体存在,而在健康的泡桐实生苗中未见。在该病传病介体——茶翅蝽(Haly- Paulownia witches broom disease is a common serious Paulownia disease. The disease mainly manifested as follows: axillary buds and adventitious buds germinated in large numbers, internodes became shorter, leaf yellowing became smaller, clusters of leaflets of small branches shaped like brooms or bird’s nest, and the diseased plants grew slowly. Light within a few years of death, severe cases were dead. In Shandong, Henan, Shanxi Province, Paulownia producing areas is particularly serious, bush branches can be seen everywhere. Paulownia trees planted in Shanghai, there are also bushmen disease. We found the presence of mycoplasmas in the leaf vein cells of Paulownia witches broom disease, but not in healthy Paulownia seedlings. In the disease pathogen mediator - Tea leaf bugs (Haly-